JPH0724934B2 - Ladle carrier - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention efficiently collects dust generated from a ladle while it is being conveyed from a melting furnace to a pouring furnace. The present invention relates to a ladle carrying device having a simple structure capable of performing.

[0002]

2. Description of the Related Art When molten metal is subjected to decarburization, desulfurization, granular graphitization, etc. in a ladle, fume-like dust is generated from the molten metal, which pollutes the atmosphere in the factory and reduces visibility. Environmental deterioration such as deterioration is caused, and dust is collected by a dust collector as a preventive measure. However, since dust is collected in the conventional ladle transfer device by a device in which a suction hood is fixedly installed on the line upper part or line side part so as to correspond to the transfer line between the melting furnace and the pouring furnace, Therefore, the suction hood cannot be brought close to the ladle and the dust collection efficiency is poor. Moreover, the suction hood needs to be provided in a long section along the transfer line, and since the amount of suction air required to collect dust is large, the equipment becomes large and the transfer line becomes complicated, and maintenance work etc. There was also the problem of becoming difficult.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and during the process of collecting dust generated from a ladle containing molten metal from a melting furnace to a pouring furnace. The purpose of the present invention is to provide a ladle transfer device that can be efficiently performed in the above-mentioned equipment, can be downsized in equipment to expand the space in the factory, and can perform maintenance work extremely easily. It has been completed.

[0004]

SUMMARY OF THE INVENTION In the ladle carrier of the present invention made to solve the above-mentioned problems, a ladle carrier is movably disposed between a melting furnace and a pouring furnace. In the ladle transporting device, a dust collector is mounted on the dolly leaving a ladle mounting space, and the dust collector is provided with a suction hood facing the suction port on the ladle mounted in the ladle mounting space. It is a feature.

[0005]

The present invention will now be described in detail with reference to the illustrated embodiments. In the figure, 1 is a melting furnace, 2 is a pouring furnace, 3 is a ladle for transferring the molten metal melted in the melting furnace 1 to the pouring furnace 2,
Reference numeral 4 is a trolley for transporting the ladle 3, and the trolley 4 automatically travels on a rail 5 laid between the melting furnace 1 and the pouring furnace 2. Placement space 4a
Other than that, a small bag filter type dust collector 6 is mounted, for example.

As shown in FIG. 6, the dust collector 6 has a box shape in which the upper corner portion of the chamber box 7 provided on the side surface is used as a connection opening portion 7a and the portion extending from the tip to the side surface is used as a suction port 8a. The suction hood 8 is rotatably supported by a shaft 9 so as to be freely pivotable in the vertical direction. When the suction hood 8 rotates downward and is positioned horizontally, the communication port 8b provided at the base matches the connection opening 7a of the chamber box 7 and the suction hood 8 and the chamber box 7 On the other hand, when the suction hood 8 is rotated upward and positioned vertically, the connection opening 7a of the chamber box 7 is shielded by the base wall surface of the suction hood 8 as shown in FIG. Thus, the communication between the suction hood 8 and the chamber box 7 is cut off.

The rotation of the suction hood 8 is performed by operating the air cylinder 11 by connecting the arm 10 fixed to the shaft 9 to the cylinder rod 11a of the air cylinder 11 as shown in FIG. It freely rotates from the horizontal direction to the vertical direction. In addition, at both ends of the rail 5 connecting the melting furnace 1 and the pouring furnace 2,
Switch 12 which is turned on / off by the arrival of each truck 4.
a and 12b are provided, and the suction hood 8 is configured to be rotated by the operation of the switches 12a and 12b, and the suction hood 8 is rotated upward to move the chamber box 7 The ejection control of the pulse jet is performed so that the dust removal processing of the dust collector 6 is performed while the opening 7a of the above is shielded.

[0008]

First, as shown in FIG. 1, the ladle 3 poured from the melting furnace 1 and containing the molten metal is suspended by a crane or the like and the ladle of the carriage 4 is constructed as described above. It is transported to the placing space 4a. At this time, the trolley 4 is in a state where the switch 12a on the melting furnace 1 side is kicked, and the switch 12a
Due to the operation of a, the suction hood 8 of the dust collector 6 is maintained in the vertically rotated state, and the ladle mounting space of the ladle 3 is maintained.
In addition to facilitating the placement on the 4a, the dust collector 6 is in a state in which the dust removal processing by the jet of the pulse jet is continued.

Next, as shown in FIG. 2, the truck 4 places the ladle 3 and automatically runs from the melting furnace 1 side toward the pouring furnace 2. At this time, when the carriage 4 leaves the melting furnace 1, the switch 12
The kicked state of a is released, which causes the air cylinder 11 to operate and the suction hood 8 of the dust collector 6 to be released.
Is rotated to the horizontal direction, the suction port 8a is directed toward the ladle 3, and the communication port 8b of the suction hood 8 is matched and communicated with the connection opening 7a of the chamber box 7 to efficiently generate dust gas. It will be sucked. Of course, during this traveling, ejection of the pulse jet is stopped by the operation of the switch 12a.

Then, as shown in FIG. 3, when the truck 4 arrives at the pouring furnace 2 side, the truck 4 kicks the switch 12b to operate the air cylinder 11, and returns the suction hood 8 from the horizontal direction to the vertical direction. After that, as shown in FIG. 4, the ladle 3 is transferred from the carriage 4 to the pouring furnace 2 by a crane or the like. In this case, since the suction hood 8 is vertically moved, the ladle 3 can be taken out very easily without being disturbed, and the movement of the suction hood 8 causes the connection opening 7a of the chamber box 7 to be opened. Since the suction hood 8 and the chamber box 7 are shielded from each other and the communication between the suction hood 8 and the chamber box 7 is interrupted, the ejection of the pulsed jet is restarted inside the dust collector 6 by the operation of the switch 12b, so that the dust removal process of the collected dust is immediately performed. Will be done.

Next, as shown in FIG. 5, when the molten ladle is discharged into the pouring furnace 2 and the empty ladle 3 is placed on the carriage 4, the carriage 4 is transferred to the melting furnace 1 again. To start automatic driving. It should be noted that the pulse jet continues to be ejected inside the dust collector 6 even during this traveling, so that the dust is reliably removed. Then, after arriving at the melting furnace 1, waiting for the next loading of the ladle 3 is performed, and thereafter, the ladle 3 is transported to the pouring furnace 2 while repeating the dust collecting process and the dust removing process by the same procedure. Become.

As described above, when the molten metal is contained in the ladle 3, the suction hood 8 opening toward the ladle 3 can surely and efficiently perform the dust collecting process, while the carriage 4 is stopped. While the medium or empty ladle 3 is being conveyed, the dust removal process can be performed with the same efficiency as the offline pulse jet process in the state where the communication with the suction hood 8 is cut off and the suction air volume is reduced as much as possible. It is a thing. Moreover, the suction hood 8 is provided along the entire area of the transport line as in the conventional case.
Therefore, it is possible to make a very compact and economical device without the need to provide the opening.

[0013]

As is apparent from the above description, the present invention is generated from a ladle containing molten metal in a ladle transport device mounted on a trolley arranged between the melting furnace and the pouring furnace. Dust can be efficiently collected while the ladle is moved to the pouring furnace, and the equipment can be downsized to expand the space in the factory and maintenance work can be performed very easily. In addition, since the dust collector fan is started so as to suck only when necessary, there is an advantage that the energy saving effect is large and the economical operation is possible. Therefore, the present invention has an extremely large contribution to the development of the industry as a ladle transfer device that eliminates the conventional problems.

[Brief description of drawings]

FIG. 1 is a schematic view of one step showing an embodiment of the present invention.

FIG. 2 is a schematic view of another step showing the embodiment of the present invention.

FIG. 3 is a schematic view of another step showing the embodiment of the present invention.

FIG. 4 is a schematic view of another step showing the embodiment of the present invention.

FIG. 5 is a schematic view of another step showing the embodiment of the present invention.

FIG. 6 is a partially cutaway front view showing a main part of the suction hood in the embodiment.

7 is a partially cutaway front view showing the operating state of FIG.

FIG. 8 is a schematic diagram for explaining the operation of the suction hood.

[Explanation of symbols]

 1 Melting furnace 2 Casting furnace 3 Ladle 4 Truck 4a Ladle mounting space 6 Dust collector 7 Chamber box 7a Connection opening 8 Suction hood 8a Suction port 8b Communication port

Claims (3)

[Claims] 1. A ladle carrier device comprising a ladle carrier truck (4) movably arranged between a melting furnace (1) and a pouring furnace (2). The dust collector (6) is installed leaving the placing space (4a), and the dust collector (6) has a suction port (8a) facing the ladle (3) placed in the ladle placing space (4a). Ladle transfer device characterized by having a hood (8). 2. The suction hood (8) has a communication port (8b) formed in the base thereof and a chamber box (7) of the dust collector (6).
Of the suction hood (8) is rotatably supported so as to be held in a state where the connection opening (7a) formed in the The communication port (8b) and the connection opening (7a) are communicated with each other when the (8a) is directed to the ladle (3) placed in the ladle placing space (4a). The ladle carrier described. 3. The suction hood (8) is rotated so that its communication port
The dust removing mechanism of the dust collector (6) is operated when the communication between the (8b) and the connection opening (7a) of the chamber box (7) is cut off. Ladle transfer device described in.